Floor washing machine and control method of floor washing machine

Abstract

The present application relates to the technical field of floor washing machines, and particularly relates to a floor washing machine and a control method of the floor washing machine, the floor washing machine comprising: a machine shell; a rolling brush assembly comprising: a support; a rolling brush, the rolling brush being rotationally connected with the support; a driving assembly, the driving assembly being arranged inside the machine shell, the driving assembly being connected with the support and being adapted to drive the support to swing between a first position and a second position, the height of the rolling brush in the first position being lower than the height of the rolling brush in the second position. When the floor washing machine is self-cleaning, the rolling brush is more immersed into a base station cleaning tank by lowering the height, so that the rolling brush immersion washing can be more fully realized, the self-cleaning effect of the floor washing machine is improved, and the rolling brush falling can improve the wiping force of the rolling brush on ground stains, so that the cleaning effect of the floor washing machine is improved.

Description

Technical Field

[0001] This invention relates to the field of floor scrubbing machine technology, and in particular to a floor scrubbing machine and a control method for the floor scrubbing machine. Background Technology

[0002] Current floor scrubbers use a fixed roller brush for cleaning, removing stains through friction between the brush bristles and the floor. However, due to design limitations, the roller brush cannot immerse itself in the cleaning tank after cleaning, hindering true solution soaking and resulting in poor self-cleaning performance. Furthermore, the uniform scrubbing force of the roller brush is insufficient for stubborn stains, even with repeated scrubbing, leading to wasted time and unsatisfactory cleaning results. Summary of the Invention

[0003] This invention provides a floor scrubbing machine and a control method for the floor scrubbing machine to solve one of the defects in the prior art. When the floor scrubbing machine of this invention is self-cleaning, the roller brush is immersed more deeply into the base station cleaning tank by lowering its height, which can more fully realize the immersion and washing of the roller brush and improve the self-cleaning effect of the floor scrubbing machine. Moreover, the falling of the roller brush can increase the wiping force of the roller brush on the dirt on the ground, thereby improving the cleaning effect of the floor scrubbing machine.

[0004] The present invention provides a floor scrubbing machine, comprising:

[0005] chassis;

[0006] The roller brush assembly includes:

[0007] support;

[0008] A roller brush, which is rotatably connected to the bracket;

[0009] A drive assembly is disposed inside the housing and connected to the bracket, adapted to drive the bracket to swing between a first position and a second position, wherein the height of the roller brush in the first position is lower than its height in the second position.

[0010] According to the present invention, a floor scrubbing machine is provided, wherein the drive assembly includes:

[0011] Rotating parts;

[0012] The motor is fixedly connected to the bracket, and the output shaft of the motor is coaxially connected to the rotating component, which is adapted to drive the rotating component to rotate around the axis. In the first position, the first surface of the rotating component is in contact with the surface of the housing, and in the second position, the second surface of the rotating component is in contact with the surface of the housing.

[0013] According to the present invention, the rotating component of the floor scrubber includes:

[0014] A first rotating block is provided with a mounting hole extending along its axial direction, and the output shaft of the motor is inserted into the mounting hole;

[0015] The second rotating block is connected to the first rotating block. The two end faces of the second rotating block in its length direction are the first surface and the second surface, respectively. The length direction of the second rotating block is perpendicular to the axial direction of the output shaft of the motor. The perpendicular distance between the second surface and the axis of the output shaft of the motor is less than the perpendicular distance between the first surface and the axis of the output shaft of the motor.

[0016] According to a floor scrubbing machine provided by the present invention, the end of the second surface is connected to the first rotating block, and the end of the first surface is located outside the edge of the first rotating block.

[0017] According to the present invention, both the first surface and the second surface are outwardly convex arc-shaped surfaces.

[0018] According to the present invention, the rotating component of a floor scrubber is a cam.

[0019] A floor scrubbing machine according to the present invention further includes:

[0020] A sensing component, the sensing component being adapted to control the motor to stop rotating by detecting the rotation angle of the rotating component.

[0021] According to the present invention, a floor scrubber is provided, wherein the sensing component includes:

[0022] Two grating plates are arranged opposite each other and located on one side of the rotating component. The extending direction of the two grating plates is perpendicular to the axial direction of the output shaft of the motor.

[0023] A convex plate is disposed on the peripheral side of the rotating component, and in the first position and the second position, the convex plate is inserted between the two grating plates.

[0024] According to a floor scrubbing machine provided by the present invention, there are two convex plates, which are symmetrically arranged on the peripheral side surface of the rotating component.

[0025] A floor scrubbing machine according to the present invention further includes:

[0026] The mounting base is disposed inside the housing. The mounting base is provided with a slot and a base plate. The grating plate is disposed in the slot. Both the first surface and the second surface of the rotating component can contact the base plate.

[0027] According to a floor scrubbing machine provided by the present invention, the drive assembly drives the bracket to rotate between the first position and the second position at a rotation angle between 2° and 4°.

[0028] A floor scrubbing machine according to the present invention further includes:

[0029] A scraper bar extends axially along the roller brush, with the scraping teeth of the scraper bar facing the roller brush. The bracket switches between a first position and a second position, and the length of the scraping teeth inserted into the roller brush is between 1.5 mm and 1.7 mm.

[0030] The present invention also provides a control method for a floor scrubber, applied to the floor scrubber described above, comprising:

[0031] Receive a deep cleaning signal and start the deep cleaning mode; or receive a self-cleaning signal and start the self-cleaning mode.

[0032] The drive assembly is controlled to drive the bracket to rotate the roller brush from the second position to the first position.

[0033] According to a control method for a floor scrubber provided by the present invention, the acquisition of a deep cleaning signal includes:

[0034] The deep cleaning signal is triggered manually by pressing a button, and / or by determining that the degree of soiling on the ground is greater than a set level.

[0035] This invention provides a floor scrubbing machine, mainly composed of a housing, a roller brush assembly, and a drive assembly. The housing integrates the cleaning system, movement system, and control system required for the machine's operation. The roller brush assembly is located outside the housing, while the drive assembly is housed within the housing and can pass through the housing to connect with the external roller brush assembly. The roller brush assembly mainly consists of a bracket and a roller brush. The roller brush contacts the ground and can rotate around its axis, performing rolling wiping cleaning on the ground during the machine's movement. The two ends of the roller brush along its axial direction are rotatably connected to the bracket, which is located outside the roller brush and connected to the housing, thereby achieving the installation and positioning of the roller brush on the housing.

[0036] The drive assembly is connected to the bracket, and the bracket is rotatably connected to the housing. Therefore, the drive assembly can drive the bracket to swing around its rotation axis on the housing, thereby causing the relative position of the roller brush and the housing to change. When the drive assembly drives the bracket to swing from the second position to the first position, the bracket drives the roller brush to rise, and the roller brush can reach the highest position. When the drive assembly drives the bracket to swing from the first position to the second position, the bracket drives the roller brush to fall, and the roller brush can reach the lowest position. Thus, by swinging between the first position and the second position, the bracket controls the up and down floating of the roller brush, thereby changing the relative height of the roller brush itself and the ground.

[0037] When the roller brush is at its highest position, it is in normal working condition and is used to clean the normal floor. When the roller brush is at its lowest position, it is in a descending state from the highest to the lowest position. During the self-cleaning process of the floor scrubber, the roller brush is immersed more deeply into the base station cleaning tank by descending the height, which can more fully realize the immersion cleaning of the roller brush and improve the self-cleaning effect of the floor scrubber.

[0038] Meanwhile, under normal operating conditions, the roller brush, by descending, can make more and closer contact with the ground, effectively increasing the friction between the brush and the floor. When the dirt on the ground becomes too much for the roller brush to clean under normal operating conditions, the descending roller brush enhances the wiping force on the stains, thereby improving the cleaning effect of the floor scrubber. This solves the problem of poor cleaning effect and high cleaning difficulty of ordinary floor scrubbers when dealing with stubborn stains. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0040] Figure 1 This is one of the structural schematic diagrams of the floor scrubber provided in the embodiments of the present invention;

[0041] Figure 2 This is the second structural schematic diagram of the floor scrubber provided in the embodiment of the present invention;

[0042] Figure 3 This is the third structural schematic diagram of the floor scrubber provided in the embodiment of the present invention;

[0043] Figure 4 This is a partial enlarged view of the structure of the floor scrubber provided in an embodiment of the present invention;

[0044] Figure 5 This is a schematic diagram of the drive assembly of the floor scrubber provided in an embodiment of the present invention;

[0045] Figure 6 This is a schematic diagram of the structure of the rotating component of the floor scrubber provided in an embodiment of the present invention;

[0046] Figure 7 This is a schematic diagram of the structure of the roller brush assembly of the floor scrubber provided in an embodiment of the present invention;

[0047] Figure 8 This is a schematic diagram of the first position of the floor scrubber provided in an embodiment of the present invention;

[0048] Figure 9This is a structural schematic diagram of the second position of the floor scrubber provided in an embodiment of the present invention.

[0049] Figure label:

[0050] 100. Housing; 110. Bottom shell; 120. Decorative cover; 130. Limiting cover;

[0051] 200. Roller brush assembly; 210. Bracket; 211. Mounting cover; 212. Drive arm; 220. Roller brush;

[0052] 300. Drive assembly; 310. Rotating component; 311. First rotating block; 312. Second rotating block; 313. First surface; 314. Second surface; 315. Mounting hole; 320. Motor; 321. Motor body; 322. Output shaft; 323. Connecting component;

[0053] 400. Sensing component; 410. Grating plate; 420. Convex plate; 421. First convex plate; 422. Second convex plate;

[0054] 500. Mounting base; 510. Slot; 520. Base plate;

[0055] 600, scraper. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0057] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0058] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0059] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0060] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0061] like Figure 1 , Figure 2 , Figure 3 , Figure 8 and Figure 9 As shown in the figure, an embodiment of the present invention provides a floor scrubbing machine, including a housing 100, a roller brush assembly 200, and a drive assembly 300; the roller brush assembly 200 includes a bracket 210 and a roller brush 220, the roller brush 220 being rotatably connected to the bracket 210; the drive assembly 300 is disposed inside the housing 100, the drive assembly 300 being connected to the bracket 210, and is adapted to drive the bracket 210 to swing between a first position and a second position, the height of the roller brush 220 in the first position being lower than the height in the second position.

[0062] An embodiment of the present invention discloses a floor scrubber, mainly composed of a housing 100, a roller brush assembly 200, and a drive assembly 300. The housing 100 integrates the cleaning system, movement system, and control system required for the operation of the floor scrubber. The roller brush assembly 200 is located outside the housing 100, and the drive assembly 300 is disposed inside the housing 100 and can pass through the housing 100 to connect with the external roller brush assembly 200. The roller brush assembly 200 mainly consists of a bracket 210 and a roller brush 220. The roller brush 220 contacts the ground and can rotate around its axis. During the movement of the floor scrubber, it performs rolling wiping and cleaning of the ground. The two ends of the roller brush 220 along its axial direction are rotatably connected to the bracket 210. The bracket 210 is located outside the roller brush 220 and connected to the housing 100, thereby realizing the installation and positioning of the roller brush 220 on the housing 100.

[0063] The drive assembly 300 is connected to the bracket 210, which is rotatably connected to the housing 100. Therefore, the drive assembly 300 can drive the bracket 210 to swing around its rotation axis on the housing 100, thereby causing the roller brush 220 to change its relative position with the housing 100. When the drive assembly 300 drives the bracket 210 to swing from the second position to the first position, the bracket 210 drives the roller brush 220 to rise, and the roller brush 220 can reach the highest position. When the drive assembly 300 drives the bracket 210 to swing from the first position to the second position, the bracket 210 drives the roller brush 220 to fall, and the roller brush 220 can reach the lowest position. Thus, by swinging between the first position and the second position, the bracket 210 controls the up and down movement of the roller brush 220, thereby changing the relative height of the roller brush 220 with respect to the ground.

[0064] When the roller brush 220 is at its highest position, it is in normal working condition and is used to clean the normal floor. When the roller brush 220 is at its lowest position, it is in a descending state from the highest to the lowest position. During the self-cleaning process of the floor scrubber, the roller brush 220 is immersed more deeply into the base station cleaning tank due to the descending height, which can more fully realize the soaking and cleaning of the roller brush 220 and improve the self-cleaning effect of the floor scrubber.

[0065] Meanwhile, under normal operating conditions, the roller brush 220 descends, allowing it to adhere more closely to the floor, effectively increasing friction. When the floor becomes too dirty for the roller brush 220 to clean under normal operating conditions, the descending roller brush enhances its wiping force, thus improving the cleaning effect of the floor scrubber. This solves the problem of poor cleaning performance and difficulty in cleaning stubborn stains found in ordinary floor scrubbers.

[0066] In addition, by lowering the roller brush 220, the floor scrubber can descend and conform to the ground more quickly when passing over steps, reducing dead corners at the junction of steps and the ground during the cleaning process, solving the problem of cleaning the right-angle junction of steps and the ground, and adapting to the cleaning scenarios of floors with steps.

[0067] According to one embodiment of the present invention, the drive assembly 300 includes a rotating component 310 and a motor 320. The motor 320 is fixedly connected to the bracket 210. The output shaft 322 of the motor 320 is coaxially connected to the rotating component 310, which is suitable for driving the rotating component 310 to rotate around the shaft. In a first position, the first surface 313 of the rotating component 310 is in contact with the surface of the housing 100. In a second position, the second surface 314 of the rotating component 310 is in contact with the surface of the housing 100.

[0068] In this embodiment, the drive assembly 300 mainly consists of a rotating component 310 and a motor 320. The motor 320 consists of a motor body 321 and an output shaft 322. The motor body 321 is fixedly connected to the bracket 210 as a whole. The output shaft 322 is coaxially connected to the rotating component 310. The motor body 321 drives the output shaft 322 to rotate, and the rotating component 310 rotates synchronously. The rotating component 310 has a first surface 313 and a second surface 314. During the rotation of the rotating component 310, both the first surface 313 and the second surface 314 can contact the surface of the housing 100.

[0069] When the rotating component 310 rotates to the point where the first surface 313 contacts the housing 100, the rotating component 310, supported by the first surface 313 on the housing 100, causes the motor 320 to rise as a whole, drives the support bracket 210 to swing to the first position, and raises the roller brush 220 to the highest position. When the rotating component 310 rotates to the point where the second surface 314 contacts the housing 100, the rotating component 310, supported by the second surface 314 on the housing 100, causes the motor 320 to fall as a whole, drives the support bracket 210 to swing to the second position, and lowers the roller brush 220 to the lowest position. Thus, the contact between the rotating component 310 and the housing 100 rotates between the first surface 313 and the second surface 314, causing the roller brush 220 to rise and fall and float in the vertical direction.

[0070] Currently available floor scrubbers with floating roller brushes (220) have complex and costly designs, making quick maintenance difficult after damage. Furthermore, most floor scrubbers on the market use direct-drive motors (320) to rotate the roller brush, gradually phasing out gearbox or belt-driven models. Compared to existing technologies that use gears and pressure rods to move the roller brush (220), the drive assembly (300) used in this invention has a simpler, more integrated structure, lower cost, and facilitates quick repair and replacement.

[0071] According to an embodiment of the present invention, the rotating component 310 includes a first rotating block 311 and a second rotating block 312. The first rotating block 311 is provided with a mounting hole 315 extending along its axial direction, and the output shaft 322 of the motor 320 is inserted into the mounting hole 315. The second rotating block 312 is connected to the first rotating block 311. The two end faces of the second rotating block 312 in its length direction are a first surface 313 and a second surface 314, respectively. The length direction of the second rotating block 312 is perpendicular to the axial direction of the output shaft 322 of the motor 320. The perpendicular distance between the second surface 314 and the axis of the output shaft 322 of the motor 320 is less than the perpendicular distance between the first surface 313 and the axis of the output shaft 322 of the motor 320.

[0072] In this embodiment, the rotating component 310 is mainly composed of a first rotating block 311 and a second rotating block 312. The length extension direction of the first rotating block 311 is the same as the axial direction of the output shaft 322 of the motor 320. The first rotating block 311 has two end faces along its length direction. One end face is provided with a mounting hole 315, so that the first rotating block 311 forms a sleeve structure. The output shaft 322 of the motor 320 is inserted into the mounting hole 315. The other end face is connected to the second rotating block 312. The second rotating block 312 has a first surface 313 and a second surface 314 of the rotating component 310 formed at both ends along its length. One end face of the second rotating block 312 along its width is connected to the first rotating block 311. The first surface 313 has a smaller perpendicular distance to the axis of the output shaft 322 than the second surface 314. Therefore, when the motor 320 drives the output shaft 322 to rotate, it drives the first rotating block 311 to rotate around the axis. The first rotating block 311 drives the second rotating block 312 to rotate around the axis, so that the first surface 313 and the second surface 314 respectively form their own movement trajectories.

[0073] As a result, the vertical distances between the first surface 313 and the second surface 314 of the second rotating block 312 and the output shaft 322 are different. This results in the vertical distances between the axis of the output shaft 322 and the surface of the housing 100 when the first surface 313 and the second surface 314 are respectively supported on the surface of the housing 100. This enables the motor 320 to move vertically as a whole, thereby driving the roller brush 220 to change its height.

[0074] According to one embodiment of the present invention, the end where the second surface 314 is located is connected to the first rotating block 311, and the end where the first surface 313 is located is located outside the edge of the first rotating block 311.

[0075] In this embodiment, the second rotating block 312 is a rectangular block, with its width direction being the axial direction of the output shaft 322 of the motor 320 and its length direction being the radial direction of the output shaft 322 of the motor 320. The second rotating block 312 is only partially connected to the end face of the first rotating block 311 in its length direction, and the remaining part naturally extends outward beyond the edge of the first rotating block 311. The end surface connected to the first rotating block 311 forms a second surface 314, and the end surface extending out of the first rotating block 311 forms a first surface 313. This ensures that when the first surface 313 contacts the housing 100, it can lift the first rotating block 311 away from the surface of the housing 100, thereby raising the motor 320.

[0076] According to one embodiment of the present invention, both the first surface 313 and the second surface 314 are outwardly convex arc-shaped surfaces.

[0077] In this embodiment, both the first surface 313 and the second surface 314 are arc-shaped surfaces, that is, the edges of the rectangular block-shaped second connecting block are made with arc-shaped transition. The output shaft 322 of the motor 320 drives the first connecting block to rotate, and synchronously drives the second connecting block to rotate. Therefore, when the first surface 313 and the second surface 314 on the second connecting block come into contact with the surface of the housing 100, they are in rolling contact. The arc-shaped surface is conducive to the rotation of the second connecting block and the smooth contact with the surface of the housing 100, reducing friction, avoiding jamming, and making the lifting and lowering action of the roller brush 220 smooth and continuous.

[0078] According to one embodiment of the present invention, the rotating component 310 is a cam.

[0079] In this embodiment, the rotating component 310 can also be a cam. Utilizing the structural characteristics of the cam, the output shaft 322 of the motor 320 is coaxially connected to the cam. The long diameter end and the short diameter end of the cam can form a first surface 313 and a second surface 314. During the rotation of the cam, the height of the motor 320 and the bracket 210 can be raised and lowered.

[0080] According to one embodiment of the present invention, the floor scrubber further includes a sensing component 400, which is adapted to control the motor 320 to stop rotating by detecting the rotation angle of the rotating component 310.

[0081] In this embodiment, the floor scrubber mainly consists of a housing 100, a drive assembly 300, a roller brush assembly 200, and a sensor assembly 400. The sensor assembly 400 is located inside the housing 100 and controls the stop state of the motor 320 by detecting the rotation angle of the rotating component 310. That is, after receiving a start signal, the motor 320 starts to drive the output shaft 322 to rotate, which in turn drives the rotating component 310 to rotate. The sensor assembly 400 monitors the rotation angle of the rotating component 310 in real time. When the rotation angle matches the set angle that the rotating component 310 needs to rotate through when the bracket 210 is in the first or second position, a stop signal is sent to the motor 320, and the motor 320 stops rotating. The bracket 210 remains in the first or second position, waiting for the next start of the motor 320.

[0082] like Figure 5 As shown, according to an embodiment of the present invention, the sensing component 400 includes two grating plates 410 and a convex plate 420. The two grating plates are arranged opposite to each other and located on one side of the rotating component 310. The extending direction of the two grating plates 410 is perpendicular to the axial direction of the output shaft 322 of the motor 320. The convex plate 420 is disposed on the peripheral side of the rotating component 310. In a first position and a second position, the convex plate 420 is inserted between the two grating plates 410.

[0083] In this embodiment, the sensing component 400 is a photosensitive control element, mainly composed of two grating plates 410 and a convex plate 420. The two grating plates 410 are arranged opposite to each other and parallel to each other, with a certain distance between them to form a gap of a certain width. The convex plate 420 is disposed on the peripheral side of the first rotating block 311 and rotates synchronously with the rotation of the first rotating block 311. The grating plate 410 is disposed on one side of the first rotating block 311 and its position corresponds to that of the convex plate 420. During the rotation of the convex plate 420, it can enter the gap between the two grating plates 410.

[0084] When the motor 320 drives the bracket 210 to rotate to the first position and the second position, the protruding plate 420 will rotate into the gap between the two grating plates 410. At this time, the grating plate 410 senses the protruding plate 420 and sends a stop signal to control the motor 320 to stop rotating. When the motor 320 starts again, the protruding plate 420 will rotate out of the gap between the two grating plates 410. At this time, the grating plate 410 cannot sense the protruding plate 420 and will not send a stop signal. Therefore, the motor 320 can only control the bracket 210 to stop at the first position and the second position. The rest of the time, it rotates and switches between the first position and the second position.

[0085] This invention utilizes a motor 320 and a grating plate 410 to drive the roller brush 220 to float up and down, maximizing the maintainability of the floor scrubber roller brush 220 and reducing costs. In other embodiments, the sensing component 400 may also be an angle sensor.

[0086] like Figure 6 As shown, according to an embodiment of the present invention, there are two protruding plates 420, which are symmetrically arranged on the peripheral side surface of the rotating component 310.

[0087] In this embodiment, two protruding plates 420 are provided on the first rotating block 311. The two protruding plates 420 are located on the same plane, and the two protruding plates 420 are arranged symmetrically about the length direction of the second rotating block 312. The length direction of the second rotating block 312 is perpendicular to the plane where the protruding plates 420 are located.

[0088] The two protruding plates 420 are designated as first protruding plate 421 and second protruding plate 422. When the motor 320 rotates forward, it drives the first protruding plate 421 into the gap between the two grating plates 410. The first surface 313 of the second rotating block 312 supports the surface of the housing 100, the bracket 210 reaches the first position, and the roller brush 220 is at its highest position. When the motor 320 rotates in reverse, it drives the first protruding plate 421 out of the gap. After the first rotating block 311 rotates 180°, the second protruding plate 422 enters the gap. The second surface 314 of the second rotating block 312 supports the surface of the housing 100, the bracket 210 reaches the second position, and the roller brush 220 is at its lowest position. Thus, the motor 320 performs forward and reverse rotation, causing the first protruding plate 421 and the second protruding plate 422 to alternately enter the gap between the two grating plates 410. This forms a control logic where forward rotation of the motor 320 drives the roller brush 220 to rise to its highest position, and reverse rotation drives the roller brush 220 to descend to its lowest position.

[0089] like Figure 4 As shown, according to an embodiment of the present invention, the floor scrubber also includes a mounting base 500, which is disposed inside the housing 100. The mounting base 500 is provided with a slot 510 and a base plate 520. A grating plate 410 is disposed in the slot 510. The first surface 313 and the second surface 314 of the rotating component 310 can both contact the base plate 520.

[0090] In this embodiment, the floor scrubber mainly consists of a housing 100, a drive assembly 300, a roller brush assembly 200, a sensor assembly 400, and a mounting base 500. The mounting base 500 is mainly used to fix the sensor assembly 400 and support the second rotating block 312. The grating plate 410 is fixed in the slot 510 of the mounting base 500, and a base plate 520 is set at the corresponding position. During the rotation of the second rotating block 312, the base plate 520 contacts the first surface 313 and the second surface 314, supporting the motor 320. Thus, the sensor assembly 400 and the drive assembly 300 are pre-installed in the mounting base 500, and then the whole assembly is integrated into the housing 100 through the mounting base 500. This facilitates structural integration and also makes disassembly and replacement convenient.

[0091] According to one embodiment of the present invention, the rotation angle of the drive assembly 300 driving the bracket 210 to rotate between a first position and a second position is between 2° and 4°.

[0092] In this embodiment, the swing angle of the bracket 210 between the first and second positions is 2°~4°, so the maximum vertical lifting height of the roller brush 220 is 2.7mm. When the floor scrubber is self-cleaning, the roller brush 220 can be immersed in the base station cleaning tank to increase the immersion depth by 2.7mm and achieve deeper solution immersion cleaning.

[0093] The housing 100 has a decorative cover plate 120 and a limiting cover plate 130 on both sides in the axial direction of the roller brush 220, and a bottom shell 110 at the bottom. When the roller brush 220 is raised or lowered, the limiting cover plate 130 and the bottom shell 110 will also limit the position of the roller brush 220 to prevent the position of the roller brush 220 from deviating significantly.

[0094] like Figure 7 As shown, the bracket 210 mainly consists of two transmission arms 212 and a mounting cover 211. The shape of the mounting cover 211 can be adjusted according to the shape of the roller brush 220. The two transmission walls are located on both sides of the decorative cover plate 120 and the limiting cover plate 130, respectively. One end of the transmission arm 212 is rotatably connected to the mounting cover 211. A connecting piece 323 is fixedly connected to the motor body 321. The connecting piece 323 passes through the limiting cover plate 130 and is threadedly connected to the other end of the transmission arm 212.

[0095] The maximum interference fit of the existing floor scrubber roller brush 220 and squeegee 600 is fixed, which cannot remove dirt and hair deep inside the roller brush 220, resulting in dirt residue.

[0096] like Figure 8 and Figure 9 As shown, according to one embodiment of the present invention, the floor scrubber also includes a scraper 600, which extends along the axial direction of the roller brush 220. The scraper teeth of the scraper 600 face the roller brush 220. The bracket 210 switches between a first position and a second position. The length of the scraper teeth inserted into the roller brush 220 is between 1.5 mm and 1.7 mm.

[0097] In this embodiment, the floor scrubber mainly consists of a housing 100, a drive assembly 300, a roller brush assembly 200, a sensor assembly 400, a mounting base 500, and a scraper 600. The scraper 600 has comb-shaped teeth that can be inserted into the surface of the roller brush 220 to a certain depth. This depth is defined as the interference fit between the roller brush 220 and the scraper 600. As the roller brush 220 moves from its highest to its lowest position, the interference fit between the roller brush 220 and the scraper 600 increases from 1.5mm to 1.7mm. This increased interference fit between the scraper 600 and the roller brush 220 effectively cleans deep-seated dirt and hair, improving the squeegee and anti-tangling effects. However, a higher interference fit is not always better; excessive interference can damage the bristles of the roller brush 220, reducing water absorption and shortening its lifespan. Therefore, this invention provides a suitable lifting height, with some fluctuation in both height and interference fit, to address existing cleaning shortcomings and achieve deep cleaning of the roller brush 220 and soaking wash.

[0098] Furthermore, the floor scrubber of the present invention is equipped with a scraper 600 that can self-clean the roller brush 220 while cleaning the floor. Therefore, when the roller brush 220 descends, the scraper teeth can penetrate deeper into the surface of the roller brush 220, and the cleaning depth of the roller brush 220 is increased accordingly. This is equivalent to improving the cleanliness of the roller brush 220 itself during the cleaning operation, making the roller brush 220 cleaner for a longer period of time, and further improving the cleaning effect of the floor scrubber.

[0099] This invention also provides a control method for a floor scrubber, applied to the floor scrubber as described in the above embodiments, comprising:

[0100] Receive a deep cleaning signal and start the deep cleaning mode; or receive a self-cleaning signal and start the self-cleaning mode.

[0101] The control drive assembly 300 drives the bracket 210 to rotate the roller brush 220 from the second position to the first position.

[0102] The control method of the floor scrubber in this embodiment of the invention involves a controller installed on the floor scrubber. Upon receiving a deep cleaning signal, the scrubber enters a deep cleaning mode; conversely, upon receiving a self-cleaning signal, it enters a self-cleaning mode. In this mode, the controller activates the drive assembly 300 to drive the support bracket 210 to swing, causing the roller brush 220 to rotate from a second position to a first position, i.e., driving the roller brush 220 to descend. In deep cleaning mode, the roller brush 220 descends, increasing the cleaning intensity on the floor. In self-cleaning mode, the roller brush 220 descends, allowing it to penetrate more deeply into the cleaning tank.

[0103] According to one embodiment of the present invention, acquiring a deep cleaning signal includes:

[0104] Manually press the button to trigger the deep cleaning signal, or confirm that the degree of dirt on the ground is greater than the set level.

[0105] In this embodiment, the deep cleaning signal can be acquired in several ways. One is to set a deep cleaning switch button, manually press the button to trigger the deep cleaning signal and enter the deep cleaning mode. The other is to set a corresponding sensor to detect the degree of dirt on the ground. The controller acquires the detection signal from the sensor, analyzes and processes it to determine whether the degree of dirt on the ground is greater than a set level. If it is greater, a deep cleaning signal is issued and the deep cleaning mode is entered.

[0106] In one embodiment, the self-cleaning signal can be acquired in several ways. One is to set a self-cleaning switch button, manually press the button to trigger the self-cleaning signal and enter the self-cleaning mode. Another is to set a corresponding sensor to detect the relative position relationship between the base station cleaning tank and the roller brush 220. The controller acquires the detection signal from the sensor, and then analyzes and processes whether the roller brush 220 has reached the base station self-cleaning position. If it has, a self-cleaning signal is issued and the self-cleaning mode is entered.

[0107] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A floor scrubbing machine, characterized in that, include: chassis; The roller brush assembly includes: support; A roller brush, which is rotatably connected to the bracket; A drive assembly is disposed inside the housing and connected to the bracket, adapted to drive the bracket to swing between a first position and a second position, wherein the height of the roller brush in the first position is lower than its height in the second position; The driving component includes: Rotating parts; The motor is fixedly connected to the bracket, and the output shaft of the motor is coaxially connected to the rotating component, suitable for driving the rotating component to rotate around the axis; Also includes: A sensing component, the sensing component being adapted to control the motor to stop rotating by detecting the rotation angle of the rotating component; The sensing component includes: Two grating plates are arranged opposite each other and located on one side of the rotating component. The extending direction of the two grating plates is perpendicular to the axial direction of the output shaft of the motor. A convex plate is disposed on the peripheral side of the rotating component, and in the first position and the second position, the convex plate is inserted between the two grating plates.

2. The floor scrubber according to claim 1, characterized in that, In the first position, the first surface of the rotating component is in contact with the surface of the housing; in the second position, the second surface of the rotating component is in contact with the surface of the housing.

3. The floor scrubbing machine according to claim 2, characterized in that, The rotating component includes: A first rotating block is provided with a mounting hole extending along its axial direction, and the output shaft of the motor is inserted into the mounting hole; The second rotating block is connected to the first rotating block. The two end faces of the second rotating block in its length direction are the first surface and the second surface, respectively. The length direction of the second rotating block is perpendicular to the axial direction of the output shaft of the motor. The perpendicular distance between the second surface and the axis of the output shaft of the motor is less than the perpendicular distance between the first surface and the axis of the output shaft of the motor.

4. The floor scrubbing machine according to claim 3, characterized in that, The end containing the second surface is connected to the first rotating block, and the end containing the first surface is located outside the edge of the first rotating block.

5. The floor scrubbing machine according to claim 2, characterized in that, Both the first surface and the second surface are outwardly convex arc-shaped surfaces.

6. The floor scrubbing machine according to claim 2, characterized in that, The rotating component is a cam.

7. The floor scrubber according to any one of claims 2 to 6, characterized in that, There are two protruding plates, which are symmetrically arranged on the circumferential surface of the rotating component.

8. The floor scrubber according to any one of claims 2 to 6, characterized in that, Also includes: The mounting base is disposed inside the housing. The mounting base is provided with a slot and a base plate. The grating plate is disposed in the slot. Both the first surface and the second surface of the rotating component can contact the base plate.

9. The floor scrubber according to any one of claims 1 to 6, characterized in that, The drive assembly drives the bracket to rotate between the first position and the second position by a rotation angle between 2° and 4°.

10. The floor scrubbing machine according to claim 9, characterized in that, Also includes: A scraper bar extends axially along the roller brush, with the scraping teeth of the scraper bar facing the roller brush. The bracket switches between a first position and a second position, and the length of the scraping teeth inserted into the roller brush is between 1.5 mm and 1.7 mm.

11. A control method for a floor scrubber, characterized in that, The floor scrubber used in any one of claims 1 to 10 comprises: Receive a deep cleaning signal and start the deep cleaning mode; or receive a self-cleaning signal and start the self-cleaning mode. The drive assembly is controlled to drive the bracket to rotate the roller brush from the second position to the first position.

12. The control method for a floor scrubber according to claim 11, characterized in that, The acquisition of the deep cleaning signal includes: The deep cleaning signal is triggered manually by pressing a button, and / or by determining that the degree of soiling on the ground is greater than a set level.

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